Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
Yes that is possible..
1. login to Joomla backend
2. Go to Joomla Main menu
3. Find Jomsocial menu theres, and edit it
4. change the alias to another name instead of Jomsocial.